Finding the Fourth Proportional to 75,006,167.80, 112,509,251.70 and 21,153,479.80
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Solution
The fourth proportional to 75,006,167.80, 112,509,251.70 and 21,153,479.80 is: 31,730,219.70
Step by Step Solution
- Step 1: Write the proportion equation
75,006,167.80 : 112,509,251.70 = 21,153,479.80 : x - Step 2: Convert to fraction form
75,006,167.80/112,509,251.70 = 21,153,479.80/x - Step 3: Cross multiply
75,006,167.80x = 112,509,251.70 × 21,153,479.80 - Step 4: Simplify right side
75,006,167.80x = 2,379,962,183,149,066 - Step 5: Solve for x
x = 2,379,962,183,149,066/75,006,167.80 - Step 6: Final answer
x = 31,730,219.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.